First of all, yes I am aware that silent films are often scored multiple times by various composers.

Now:
I am trying to do some research on a film score for Battleship Potemkin, I thought I was dealing with Shostakovich, then found out I was listening to a 1950s score by a N. Kryukov and that there was another score done in the 30's by a German composer Edmund Meisel (who's score was supposed to be the most fabulous of all and was lost but recently rediscovered and recorded) the million dollar question is this:

where does Shostakovitch come into this? The only place I can find him associated with this film is in the Internet Movie Database and in a Facet's online catalog listing for a VHS Potemkin with a wonderful score by Shostakovitch. I haven't been able to find anything on Kryukov, are Kryukov and Shostakovitch the same person? Was he writing under a different name for some reason? If you order a Battleship Potemkin 9 times out of 10 you will get the Kryukov score (Crown Movie Classics, KVC Home Video) I haven't been able to find a copy available score by anyone else.

Can anyone shed some light on this? I was trying to show how editing, cinematography, and music worked together to create an emotional experience in the viewer. I am using a 63 second clip from the Odessa steps scene. It would be nice if I could credit the right composer.

I know this might be a lot to ask for a Friday, but the collective wisdom has performed miracles in the past.....